Features: High quality high-gain whip antenna; 3.2dBi（VHF）/5.6dBi（-UHF）； Expand the scope of two-way broadcasting. This portable dual-band UHF+VHF antenna is scalable and can be shortened and expanded; Easy to pack and carry in outdoor activities; Scalable design provides you with more convenience. SMA-F antenna is suitable for RT5R RT6 RT7 RT29 two-way raidos and other antennas with SMA-M connectors. Connector type: SMA-F (female). Frequency: dual-band UHF+VHF. Specifications: Frequency: 144/430MHz Gains: 3.2dBi (VHF)/5.6dBi (-UHF). Power: 50Watts. 5. SWR: less than 1.5 Impedance: 50ohm. Diameter: 0.5cm Length of telescopic antenna (including basic length): 24.5cm/9.6'' (retracted)/85cm/33.46'' (full length). Length of ordinary antenna (including basic length): 22.5cm/8.86''. Package Includes: 1x Antenna note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.